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171 Matching Results
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Theoretical Modelling of the Diffuse Emission of (gamma)-rays From Extreme Regions of Star Formation: The Case of Arp 220
Our current understanding of ultraluminous infrared galaxies suggest that they are recent galaxy mergers in which much of the gas in the former spiral disks, particularly that located at distances less than 5 kpc from each of the pre-merger nuclei, has fallen into a common center, triggering a huge starburst phenomenon. This large nuclear concentration of molecular gas has been detected by many groups, and estimates of molecular mass and density have been made. Not surprisingly, these estimates were found to be orders of magnitude larger than the corresponding values found in our Galaxy. In this paper, a self-consistent model of the high energy emission of the super-starburst galaxy Arp 220 is presented. The model also provides an estimate of the radio emission from each of the components of the central region of the galaxy (western and eastern extreme starbursts, and molecular disk). The predicted radio spectrum is found as a result of the synchrotron and free-free emission, and absorption, of the primary and secondary steady population of electrons and positrons. The latter is output of charged pion decay and knock-on leptonic production, subject to a full set of losses in the interstellar medium. The resulting radio spectrum is in …
Date:
July 9, 2004
Creator:
Torres, D F
Object Type:
Article
System:
The UNT Digital Library
[Letter from Roberto Fierro Villalobos to Pedro J. Gonzalez, 1]
Letter from Executive President, Division General, and Aviator Pilot Roberto Fierro Villalobos to Pedro J. Gonzalez. Two illustrations of men are printed in the top corners of the paper while the letter's title sits between them. Under the title and the illustrations are lists of names, with the leftmost list extending the farthest towards the bottom of the page. The rest of the page is occupied by a wide column of paragraphed text printed below an eagle icon and an address. Below the paragraphs is a signature.
Date:
July 31, 1979
Creator:
Parlee, Lorena, 1945-2006
Object Type:
Text
System:
The UNT Digital Library
[Letter from Roberto Fierro Villalobos to Pedro J. Gonzalez, 5]
Letter from Roberto Fierro Villalobos to Pedro J. Gonzalez. Two illustrations of men and a title are printed above two short lists of names and one long list, which extends towards the bottom of the page. The rest of the page is occupied by a wide column of paragraphed text positioned below an eagle icon and an address. Below the paragraphs is a signature and a second title.
Date:
July 31, 1979
Creator:
Parlee, Lorena, 1945-2006 & Villalobos, Roberto Fierro
Object Type:
Text
System:
The UNT Digital Library
South Texas Catholic (Corpus Christi, Tex.), Vol. 52, No. 7, Ed. 1, July 2017
Monthly newspaper from Corpus Christi, Texas published by the Diocese of Corpus Christi that includes news of interest to Diocese members along with advertising.
Date:
July 2017
Creator:
Cardenas, Alfredo E.
Object Type:
Newspaper
System:
The Portal to Texas History
Rio Grande Herald (Rio Grande City, Tex.), Vol. 89, No. 28, Ed. 1 Thursday, July 11, 2002
Weekly newspaper from Rio Grande City, Texas that includes local, state and national news along with extensive advertising.
Date:
July 11, 2002
Creator:
Roberts, Kenneth
Object Type:
Newspaper
System:
The Portal to Texas History
The ECHO, Vol. 93, No. 6, Ed. 1 Thursday, July 1, 2021
Monthly newspaper produced for inmates in the Texas criminal justice system containing news stories, policy updates, opinion pieces, creative works, and other information.
Date:
July 1, 2021
Creator:
Texas. Department of Criminal Justice.
Object Type:
Newspaper
System:
The Portal to Texas History
The Pharr Press (Pharr, Tex.), Vol. 47, No. 27, Ed. 1 Thursday, July 17, 1980
Weekly newspaper from Pharr, Texas that includes local, state, and national news along with advertising.
Date:
July 17, 1980
Creator:
Nelson, Charles
Object Type:
Newspaper
System:
The Portal to Texas History
The Hereford Brand (Hereford, Tex.), Vol. 76, No. 1, Ed. 1 Friday, July 1, 1977
Daily newspaper from Hereford, Texas that includes local, state, and national news along with advertising.
Date:
July 1, 1977
Creator:
Sims, Paul
Object Type:
Newspaper
System:
The Portal to Texas History
Rio Grande Herald (Rio Grande City, Tex.), Vol. 89, No. 27, Ed. 1 Thursday, July 4, 2002
Weekly newspaper from Rio Grande City, Texas that includes local, state and national news along with extensive advertising.
Date:
July 4, 2002
Creator:
Roberts, Kenneth
Object Type:
Newspaper
System:
The Portal to Texas History
Benavides Facts (Benavides, Tex.), Vol. 16, No. 19, Ed. 1 Friday, July 11, 1941
Weekly newspaper from Benavides, Texas that includes local, state, and national news along with advertising.
Date:
July 11, 1941
Creator:
Beaman, J. L. C.
Object Type:
Newspaper
System:
The Portal to Texas History
La Prensa (San Antonio, Tex.), Vol. 6, No. 1253, Ed. 1 Friday, July 12, 1918
Daily Spanish-language newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
July 12, 1918
Creator:
Lozano, Ignacio E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Odem-Edroy Times (Odem, Tex.), Vol. 28, No. 29, Ed. 1 Thursday, July 19, 1979
Weekly newspaper from Odem, Texas that includes local, state, and national news along with advertising.
Date:
July 19, 1979
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Orange Leader (Orange, Tex.), Vol. 56, No. 161, Ed. 2 Sunday, July 5, 1959
Daily newspaper from Orange, Texas that includes local, state and national news along with extensive advertising.
Date:
July 5, 1959
Creator:
Browning, J. Cullen
Object Type:
Newspaper
System:
The Portal to Texas History
The Prospector (El Paso, Tex.), Vol. 71, No. 67, Ed. 1 Tuesday, July 15, 1986
Weekly student newspaper from the University of Texas at El Paso that includes campus news and information along with advertising.
Date:
July 15, 1986
Creator:
University of Texas at El Paso
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 95, No. 76, Ed. 1 Sunday, July 6, 2003
Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
July 6, 2003
Creator:
Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
Brownwood Bulletin (Brownwood, Tex.), Vol. 63, No. 232, Ed. 1 Friday, July 12, 1963
Daily newspaper from Brownwood, Texas that includes local, state, and national news along with advertising.
Date:
July 12, 1963
Creator:
Gage, Larry
Object Type:
Newspaper
System:
The Portal to Texas History
The Rio Grande Herald (Rio Grande City, Tex.), Vol. 80, No. 33, Ed. 1 Thursday, July 12, 1990
Weekly newspaper from Rio Grande City, Texas that includes local, state and national news along with extensive advertising.
Date:
July 12, 1990
Creator:
Roberts, Kenneth
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 112, No. 163, Ed. 1 Thursday, July 22, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 22, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Zavala County Sentinel (Crystal City, Tex.), Vol. 43, No. 10, Ed. 1 Friday, July 2, 1954
Weekly newspaper from Crystal City, Texas that includes local, state, and national news along with advertising.
Date:
July 2, 1954
Creator:
Dry, Roy, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
El Paso Daily Times. (El Paso, Tex.), Vol. 5, No. 81, Ed. 1 Friday, July 24, 1885
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
July 24, 1885
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Panhandle Herald (Panhandle, Tex.), Vol. 57, No. 1, Ed. 1 Friday, July 23, 1943
Weekly newspaper from Panhandle, Texas that includes local, state, and national news along with extensive advertising.
Date:
July 23, 1943
Creator:
Warren, David M.
Object Type:
Newspaper
System:
The Portal to Texas History
The Mercedes Enterprise (Mercedes, Tex.), Vol. 54, No. 27, Ed. 1 Thursday, July 3, 1969
Weekly newspaper from Mercedes, Texas that includes local, state, and national news along with advertising.
Date:
July 3, 1969
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
La Prensa (San Antonio, Tex.), Vol. 7, No. 1929, Ed. 1 Friday, July 16, 1920
Daily Spanish-language newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
July 16, 1920
Creator:
Lozano, Ignacio E.
Object Type:
Newspaper
System:
The Portal to Texas History
La Prensa (San Antonio, Tex.), Vol. 5, No. 676, Ed. 1 Saturday, July 7, 1917
Daily Spanish-language newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
July 7, 1917
Creator:
Lozano, Ignacio E.
Object Type:
Newspaper
System:
The Portal to Texas History